from The Century Dictionary and Cyclopedia

  • n. In embroyl., the parent-cell or cytula which results from a perimonerula by the reformation of the nucleus, and which proceeds by partial and superficial segmentation of the vitellus to develop into a perimorula, periblastula, and perigastrula. It is the usual form of ovum or egg of insects and other arthropods. See gastrulation.


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